package top.cluski.shardingsphere.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.apache.ibatis.annotations.Select;
import top.cluski.shardingsphere.entity.Course;

public interface CourseMapper extends BaseMapper<Course> {

    @Select("select MAX(cid) from course")
    String selectMax();
}
